Random noise signal having the same amount of energy in each octave. Therefore, the amount of energy between 100 Hz and 200 Hz, a 100-cycle-wide segment, is the same as the energy between 10 kHz and 20 kHz.
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Pink noise --
Random noise signal having the same amount of energy in each octave. Therefore, the amount of energy between 100 Hz and 200 Hz, a 100-cycle-wide segment, is the same as the energy between 10 kHz and 20 kHz.